Tire tread and buttress



FIG. 1 is a perspective view of a tire tread and buttress showing our new design, it being understood that the pattern is repeated uniformly throughout the circumference of the tread and buttress;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a fragmentary side elevation view thereof;

FIG. 4 is a fragmentary elevation view of the opposite side thereof; and

FIG. 5 is a fragmentary front elevation view thereof.

The broken line showing of environmental structure in FIGS. 1, 3 and 4 of the drawing is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a tire tread and buttress, as shown and described. 